Break the strength-ductility trade-off in a ransformation-induced plasticity high-entropy alloy reinforced with precipitation strengthening

2021 ◽  
Author(s):  
Dong Huang ◽  
Yanxin Zhuang
Keyword(s):  
Precipitation Strengthening ◽  
High Entropy Alloy ◽  
Trade Off ◽  
High Entropy

scholarly journals Ordered nitrogen complexes overcoming strength–ductility trade-off in an additively manufactured high-entropy alloy

2020 ◽  
Vol 15 (sup1) ◽  
pp. 532-542
Author(s):  
Dandan Zhao ◽  
Quan Yang ◽  
Dawei Wang ◽  
Ming Yan ◽  
Pei Wang ◽  
...  
Keyword(s):  
High Entropy Alloy ◽  
Trade Off ◽  
High Entropy

scholarly journals Microstructure and Mechanical Property Evolution during Annealing of a Cold-Rolled Metastable Powder Metallurgy High Entropy Alloy

Entropy ◽  
2019 ◽  
Vol 21 (9) ◽  
pp. 833 ◽  
Author(s):  
Li ◽  
Qiu ◽  
Guo ◽  
Liu ◽  
Zhou ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Mechanical Property ◽  
Tensile Strength ◽  
Powder Metallurgy ◽  
Cold Deformation ◽  
Precipitation Strengthening ◽  
High Entropy Alloy ◽  
Σ Phase ◽  
High Entropy ◽  
Fine Grain

Precipitation strengthening is an effective approach to strengthen high-entropy alloys (HEAs) with a simple face-center-cubic (FCC) structure. In this work, CoCrFeNiMo0.2 HEAs were prepared by powder metallurgy, followed by cool rolling and subsequent heat-treatment at different temperatures. The effects of cold working and annealing on microstructure and mechanical properties have been investigated. Results show the fine and dispersed (Cr, Mo)-rich σ phase with a topologically close-packed structure precipitated in the FCC matrix after the prior cold deformation process, which enhanced the mechanical property of the CoCrFeNiMo0.2 alloy. The HEA annealed at 600 °C for 48 h had a tensile strength of 1.9 GPa but an elongation which decreased to 8%. The HEA annealed at 800 °C for 12 h exhibited a tensile strength of 1.2 GPa and an elongation of 31%. These outstanding mechanical properties can be attributed to precipitation strengthening and fine-grain strengthening.

Optimizing the coupled effects of Hall-Petch and precipitation strengthening in a Al 0.3 CoCrFeNi high entropy alloy

2017 ◽  
Vol 121 ◽  
pp. 254-260 ◽  
Author(s):  
B. Gwalani ◽  
Vishal Soni ◽  
Michael Lee ◽  
SA Mantri ◽  
Yang Ren ◽  
...  
Keyword(s):  
Precipitation Strengthening ◽  
High Entropy Alloy ◽  
High Entropy

In-situ formed heterogeneous grain structure in spark-plasma-sintered CoCrFeMnNi high-entropy alloy overcomes the strength-ductility trade-off

2020 ◽  
Vol 771 ◽  
pp. 138625 ◽  
Author(s):  
Feilong Jiang ◽  
Cancan Zhao ◽  
Dingshan Liang ◽  
Weiwei Zhu ◽  
Yiwen Zhang ◽  
...  
Keyword(s):  
Grain Structure ◽  
High Entropy Alloy ◽  
Trade Off ◽  
High Entropy ◽  
Spark Plasma

Enhancement of strength-ductility trade-off in a high-entropy alloy through a heterogeneous structure

2019 ◽  
Vol 165 ◽  
pp. 444-458 ◽  
Author(s):  
S.W. Wu ◽  
G. Wang ◽  
Q. Wang ◽  
Y.D. Jia ◽  
J. Yi ◽  
...  
Keyword(s):  
High Entropy Alloy ◽  
Heterogeneous Structure ◽  
Trade Off ◽  
High Entropy

Nitrogen induced heterogeneous structures overcome strength-ductility trade-off in an additively manufactured high-entropy alloy

2020 ◽  
Vol 18 ◽  
pp. 100498 ◽  
Author(s):  
Min Song ◽  
Rui Zhou ◽  
Ji Gu ◽  
Zhangwei Wang ◽  
Song Ni ◽  
...  
Keyword(s):  
High Entropy Alloy ◽  
Trade Off ◽  
High Entropy ◽  
Heterogeneous Structures

scholarly journals Dislocation-induced breakthrough of strength and ductility trade-off in a non-equiatomic high-entropy alloy

2020 ◽  
Vol 185 ◽  
pp. 45-54 ◽  
Author(s):  
Wenqi Guo ◽  
Jing Su ◽  
Wenjun Lu ◽  
Christian H. Liebscher ◽  
Christoph Kirchlechner ◽  
...  
Keyword(s):  
High Entropy Alloy ◽  
Trade Off ◽  
High Entropy ◽  
Strength And Ductility

Carbide precipitation strengthening in fine-grained carbon-doped FeCoCrNiMn high entropy alloy

2019 ◽  
Vol 803 ◽  
pp. 491-498 ◽  
Author(s):  
Jian Peng ◽  
Ziyong Li ◽  
Liming Fu ◽  
Xinbo Ji ◽  
Zhuorui Pang ◽  
...  
Keyword(s):  
Carbide Precipitation ◽  
Precipitation Strengthening ◽  
High Entropy Alloy ◽  
High Entropy ◽  
Carbon Doped ◽  
Fine Grained

Precipitation strengthening in a hot-worked TiNbTa0.5ZrAl0.5 refractory high entropy alloy

2019 ◽  
Vol 246 ◽  
pp. 186-189 ◽  
Author(s):  
Yuankui Cao ◽  
Yong Liu ◽  
Yunping Li ◽  
Bin Liu ◽  
Jiawen Wang ◽  
...  
Keyword(s):  
Precipitation Strengthening ◽  
High Entropy Alloy ◽  
High Entropy
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